A positioning pile for pipe laying

Abstract

The utility model provides a kind of positioning pile for pipeline laying, it is related to pipeline conveying accessory technical field, including pile body and the pipe-penetrating assembly fixed in the upper end of pile body, pipe-penetrating assembly includes upper locating disc, lower locating disc, billiard ball and center guide wheel, upper locating disc is fixedly connected with lower locating disc between through coaxial connecting rod, center guide wheel is rotatably connected on connecting rod, the lower surface outside of upper locating disc has baffle one, the upper surface outside of lower locating disc has baffle two, billiard ball is located between upper locating disc and lower locating disc, baffle one and baffle two form limit to billiard ball, billiard ball and center guide wheel form a pipe-penetrating area between.The utility model has the advantages that pipeline traction direction can be adjusted in a large range.

Description

Technical Field

[0001] This utility model relates to the field of pipeline transportation accessories technology, and in particular to a positioning pile for pipeline laying. Background Technology

[0002] During the transportation of LNG by ship, pipelines need to be laid between the seabed and the land near the terminal. These pipelines connect the ship's cargo hold to the land-based oil storage facilities. When laying pipelines, a method of positioning them while laying is generally adopted. Therefore, pipeline positioning piles are needed to guide the pipeline. Currently, most of these are "gate" shaped structures, which consist of two piles driven into the seabed foundation and a chain connecting the two piles, forming a "gate" shaped pipe-passing area to provide positioning and traction guidance for the pipeline. They also allow the traction direction of the pipeline to be adjusted during the laying process. However, this structure not only requires driving two piles, increasing the labor intensity and cost, but also causes relatively severe friction between the chain and the pipeline. In addition, the range of adjustment of the traction direction during pipeline laying is also relatively small. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention proposes a positioning pile that can adapt to adjusting the traction direction during pipeline laying.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a positioning pile for pipeline laying, characterized in that it includes a pile body and a pipe-penetrating assembly fixed to the upper end of the pile body. The pipe-penetrating assembly includes an upper positioning plate, a lower positioning plate, a ball, and a central guide wheel. The upper positioning plate and the lower positioning plate are fixedly connected by a coaxial connecting rod. The central guide wheel is rotatably connected to the connecting rod. The lower surface of the upper positioning plate has a first retaining edge, and the upper surface of the lower positioning plate has a second retaining edge. The ball is located between the upper positioning plate and the lower positioning plate. The first retaining edge and the second retaining edge limit the ball. A pipe-penetrating area is formed between the ball and the central guide wheel.

[0005] This scheme utilizes the area formed between the eccentrically positioned rolling ball and the central guide wheel as the pipe-passing area. During pipe traction, the rolling ball moves in a circular motion outside the central guide wheel, allowing for a wide range of adjustments to the pipe traction direction. It also provides guidance for pipe traction. The rolling motion reduces traction resistance, eliminating the need to consider the possible pipe traction direction during pile driving. Furthermore, because the pipe is located eccentrically on the pile, the pull-out force of the pipe traction force on the pile is not along the pile axis, which can improve the pile's pull-out strength to a certain extent.

[0006] Furthermore, the central guide wheel includes two symmetrically arranged conical discs, both of which are rotatably connected to the connecting rod. The central guide wheel is divided into two parts, which can accommodate the outer diameter of the pipe within a certain range, and also reduces the probability of the pipe getting stuck during traction.

[0007] Furthermore, the lower positioning plate has several through holes located inside the second retaining edge. These through holes facilitate the removal of accumulated dirt from the inner side of the second retaining edge on the lower positioning plate.

[0008] Furthermore, the lower end of the pile body has a conical guide portion.

[0009] Furthermore, the outer wall surface of the pile body has a guide plate parallel to the pile body axis.

[0010] Alternatively, the outer wall of the pile may have a spiral guide plate.

[0011] Furthermore, the upper surface of the upper positioning disk is curved, and the lower surface of the lower positioning disk is curved.

[0012] Alternatively, the upper surface of the upper positioning disk may be a plane, and the lower surface of the lower positioning disk may be a plane.

[0013] Furthermore, the connecting rod is connected to the upper end of the pile body by a thread. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the positioning pile.

[0015] Figure 2 This is a schematic diagram of the tube-insertion assembly.

[0016] Figure 3 This is a cross-sectional view of the tube-through assembly when the upper surface of the upper positioning plate is flat.

[0017] Figure 4 This is a cross-sectional view of the tube assembly when the upper surface of the upper positioning plate is curved.

[0018] Legend: 1. Pile body; 2. Upper positioning plate; 3. Lower positioning plate; 4. Rolling ball; 5. Connecting rod; 6. First flange; 7. Second flange; 8. Conical plate; 9. Through hole; 10. Guide part; 11. Guide pile plate. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] like Figure 1 , Figure 2 and Figure 3As shown, the assembly includes a pile body 1 and a pipe-through assembly fixed to the upper end of the pile body 1. The pipe-through assembly includes an upper positioning plate 2, a lower positioning plate 3, a ball bearing 4, and a central guide wheel. The upper positioning plate 2 and the lower positioning plate 3 are fixedly connected by a coaxial connecting rod 5. The central guide wheel is rotatably connected to the connecting rod 5. The lower surface of the upper positioning plate 2 has a first flange 6 on its outer side, and the upper surface of the lower positioning plate 3 has a second flange 7 on its outer side. The ball bearing 4 is located between the upper positioning plate 2 and the lower positioning plate 3. The first flange 6 and the second flange 7 limit the movement of the ball bearing 4, and a pipe-through area is formed between the ball bearing 4 and the central guide wheel.

[0021] This scheme utilizes the area formed between the eccentrically positioned rolling ball 4 and the central guide wheel as the pipe-passing area. During pipe traction, the rolling ball 4 moves in a ring around the central guide wheel, allowing for a wide range of adjustments to the pipe traction direction. It also provides guidance for pipe traction. The rolling motion reduces traction resistance, eliminating the need to consider the possible pipe traction direction during pile driving. Furthermore, since the pipe is located at an eccentric position on the pile body 1, the pull-out force of the pipe traction force on the pile body 1 is not along the axis of the pile body 1, which can improve the pull-out strength of the pile body 1 to a certain extent.

[0022] The central guide wheel includes two symmetrically arranged conical discs 8, both of which are rotatably connected to the connecting rod 5. The central guide wheel is divided into two parts, which can adapt to the outer diameter of the pipe within a certain range. That is, there is a certain amount of play between the two conical discs 8 in the longitudinal direction. In addition, it can also reduce the probability of the pipe getting stuck during traction.

[0023] The lower positioning plate 3 has several through holes 9, which are located inside the second retaining edge 7. The through holes 9 facilitate the discharge of dirt accumulated inside the second retaining edge 7 on the lower positioning plate 3.

[0024] The lower end of the pile body 1 has a conical guide portion 10, and the outer wall surface of the pile body 1 has a guide plate 11 parallel to the axis of the pile body 1. Of course, it can also be a spiral guide plate 11.

[0025] The upper surface of the upper positioning plate 2 is flat, and the lower surface of the lower positioning plate 3 is flat. The connecting rod 5 is threadedly connected to the upper end of the pile body 1. The pile can be driven first, and then the pipe assembly can be installed.

[0026] like Figure 4 As shown, the upper surface of the upper positioning plate 2 is curved, and the lower surface of the lower positioning plate 3 is curved, which can reduce the deposition of dirt.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A positioning stake for pipeline laying, characterized in that, The assembly includes a pile body (1) and a pipe-through assembly fixed to the upper end of the pile body (1). The pipe-through assembly includes an upper positioning plate (2), a lower positioning plate (3), a ball (4), and a central guide wheel. The upper positioning plate (2) and the lower positioning plate (3) are fixedly connected by a coaxial connecting rod (5). The central guide wheel is rotatably connected to the connecting rod (5). The lower surface of the upper positioning plate (2) has a first flange (6) on its outer side, and the upper surface of the lower positioning plate (3) has a second flange (7) on its outer side. The ball (4) is located between the upper positioning plate (2) and the lower positioning plate (3). The first flange (6) and the second flange (7) limit the movement of the ball (4). A pipe-through area is formed between the ball (4) and the central guide wheel.

2. A positioning stake for pipeline laying according to claim 1, characterized in that, The central guide wheel includes two symmetrically arranged conical discs (8), both of which are rotatably connected to the connecting rod (5).

3. A positioning stake for pipeline laying according to claim 1, characterized in that, The lower positioning plate (3) has several through holes (9), which are located inside the second side (7). The through holes (9) facilitate the discharge of dirt accumulated inside the second side (7) of the lower positioning plate (3).

4. A positioning stake for pipeline laying according to claim 1, 2, or 3, characterized in that, The lower end of the pile (1) has a conical guide (10).

5. A positioning stake for pipeline laying according to claim 1, 2, or 3, characterized in that, The outer wall of the pile body (1) has a guide plate (11) parallel to the axis of the pile body (1).

6. A positioning stake for pipeline laying according to claim 1, 2, or 3, characterized in that, The outer wall of the pile body (1) has a spiral guide plate (11).

7. A positioning stake for pipeline laying according to claim 1, 2, or 3, characterized in that, The upper surface of the upper positioning disk (2) is curved, and the lower surface of the lower positioning disk (3) is curved.

8. A positioning stake for pipeline laying according to claim 1, 2, or 3, characterized in that, The upper surface of the upper positioning disk (2) is a plane, and the lower surface of the lower positioning disk (3) is a plane.

9. A positioning stake for pipeline laying according to claim 1, 2, or 3, characterized in that, The connecting rod (5) is connected to the upper end of the pile body (1) by a thread.

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